In spring 1742, there is great excitement in Frankfurt am Main: After the electors of the Holy Roman Empire have gathered in the city to elect the emperor over the winter, the coronation is now imminent. The city is overflowing with guests attending this unique ceremony, and the people of Frankfurt are experiencing their city in a state of emergency: Rooms and beds are overcrowded, guests are demanding food and drink, and the preparations for the grand ceremony completely occupy the daily lives of the Frankfurt citizens. This is also true for the frail Leo; he is a true fan of the emperor. The clever and well-read boy is thrilled by the colorful hustle and bustle in his city, and like many other Frankfurt residents, he wants to take home a memento from the celebration after the highlight of the coronation. The only problem: As a relative.